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Table 3 Effect of repeated blood donations on exercise parameters

From: Effect of Repeated Whole Blood Donations on Aerobic Capacity and Hemoglobin Mass in Moderately Trained Male Subjects: A Randomized Controlled Trial

   Test series 1 Test series 2 Test series 3
   -1w 2d 1w 2w 4w -1w 2d 1w 2w 4w -1w 2d 1w 2w 4w
Lactate 190W P 3.8 ± 1.1 3.2 ± 1.0 3.5 ± 1.1 3.5 ± 1.2 3.5 ± 1.2 2.1 ± 0.8# 3.1 ± 1.5 3.0 ± 1.4* 2.9 ± 1.2* 3.1 ± 1.4* 2.8 ± 1.1## 2.6 ± 1.0 2.2 ± 0.9 2.1 ± 0.7* 1.7 ± 0.3*
(mmol/l) D 2.8 ± 0.3 3.1 ± 0.3 3.0 ± 0.4 3.0 ± 0.3 2.6 ± 0.4 2.0 ± 0.2## 2.3 ± 0.3* 2.5 ± 0.3** 2.1 ± 0.3 2.1 ± 0.2 2.4 ± 0.4### 2.1 ± 0.3 2.0 ± 0.3* 1.8 ± 0.3** 1.7 ± 0.2***
Lactate post P 11.9 ± 0.8 12.1 ± 0.7 11.6 ± 0.2 13.6 ± 1.1 13.2 ± 1.9 9.3 ± 0.9 10.2 ± 2.3 10.7 ± 1.8 9.7 ± 0.9 11.2 ± 1.2 10.2 ± 1.3 9.8 ± 0.7 10.3 ± 1.3 9.8 ± 1.1 8.7 ± 1.0
(mmol/l) D 13.6 ± 0.8 13.0 ± 1.0 12.1 ± 1.1 11.8 ± 1.0 10.8 ± 0.6** 11.5 ± 1.1## 10.9 ± 0.9 11.0 ± 1.1 10.8 ± 0.9 10.6 ± 0.8 11.8 ± 1.0### 10.2 ± 1.3 9.5 ± 1.2* 10.1 ± 0.7 9.2 ± 0.9*
HR max P 184 ± 4 183 ± 3 179 ± 5* 178 ± 6* 177 ± 4** 169 ± 7# 174 ± 5* 174 ± 4* 178 ± 4** 175 ± 5* 176 ± 4 174 ± 5 177 ± 4 180 ± 5 177 ± 4
(bpm) D 187 ± 4 187 ± 3 183 ± 3* 180 ± 3*** 182 ± 3** 180 ± 4# 181 ± 3 182 ± 2 182 ± 2 180 ± 3 181 ± 3### 178 ± 3 175 ± 5 181 ± 3 179 ± 4
Oxygen pulse P 0.31 ± 0.02 0.31 ± 0.03 0.30 ± 0.03 0.31 ± 0.03 0.29 ± 0.03 0.32 ± 0.04 0.30 ± 0.03 0.31 ± 0.04 0.29 ± 0.03 0.28 ± 0.03 0.29 ± 0.03 0.30 ± 0.04 0.29 ± 0.03 0.29 ± 0.03 0.30 ± 0.04
(ml O2/beat/kg) D 0.31 ± 0.01 0.30 ± 0.02 0.29 ± 0.01* 0.29 ± 0.01** 0.29 ± 0.01* 0.30 ± 0.01## 0.28 ± 0.01* 0.29 ± 0.01 0.30 ± 0.01 0.30 ± 0.01 0.29 ± 0.01## 0.27 ± 0.01* 0.28 ± 0.01* 0.26 ± 0.01** 0.27 ± 0.01*
VE max P 139 ± 11 132 ± 14 130 ± 15 125 ± 15 124 ± 11* 131 ± 8 119 ± 10 133 ± 10 136 ± 12 137 ± 17 138 ± 16 134 ± 11 139 ± 12 147 ± 11* 139 ± 13
(l/min) D 135 ± 7 135 ± 6 130 ± 6 128 ± 9 126 ± 8 123 ± 7# 122 ± 7 131 ± 7* 137 ± 7** 126 ± 6 145 ± 7 131 ± 8* 134 ± 7* 143 ± 7 135 ± 6
Total time P 16.9 ± 1.2 16.7 ± 1.2 16.7 ± 1.4 16.7 ± 1.5 16.9 ± 1.4 17.4 ± 2.4# 18.3 ± 3.1* 18.2 ± 2.3* 18.3 ± 2.4* 18.4 ± 2.4* 18.0 ± 2.2### 18.1 ± 2.2 18.9 ± 2.4 19.5 ± 2.2* 18.3 ± 1.7
(min) D 16.9 ± 0.9 16.1 ± 1.0** 16.2 ± 0.8*** 16.3 ± 0.8*** 16.5 ± 0.9* 17.7 ± 1.1 17.2 ± 1.2* 16.9 ± 1.2 17.9 ± 1.2 17.8 ± 1.2 17.4 ± 1.1 16.8 ± 1.1 17.7 ± 1.1 18.5 ± 1.2 17.1 ± 0.9
  1. Values are means ± SEM (n = 7 in P and n = 13 in D for test series 1; n = 5 in P and n = 13 in D for test series 2 and 3. HR heart rate, VE ventilation, P placebo, D donation. # p < 0.05, ## p < 0.01, ### p < 0.001 vs. -1w of test series 1, same group. *p < 0.05, **p < 0.01, ***p < 0.001 vs. -1w of the same test series, same group
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